“This is my first review on Head-Fi, so forgive me for my trip ups and lack of jargon, as I simply do not have the knowledge or experience to accurately describe everything I hear and feel.
That being said, I deliberated over my purchase of these IEM's for quite a while. For a few months, I had a toss-up between the GR07 BE, Sennheiser CX985, Rock-It R50 and RHA MA-750i. Any one of these...” --dazzerfong

“
First off I want to thank RHA for selecting me as one of their 3 reviewers here on Head-fi. I really appreciate being selected out of so many quality reviewers that replied in the reviewers wanted thread. I also would like to thank the people who posted their recommendation for me. I was touched by those posts more than you realize, as the process of writing reviews can at times feel like I...” --dweaver

“
I'd like to think RHA for sending me these earphones for review.
Along with the summary below, I have posted a Youtube video review of the MA350. If you like the video, check out my channel for more reviews :)
Summary
BUILD
The MA350 has an interesting build, with a reverse horn / funnel shape. This is actually the opposite of a horn...” --a_recording

“Looking at the picture of the PK3's I wasn't expecting much. They look and feel cheap using a generic case for the drivers making them easy to fake. (In fact my first pair were fake!) these earbuds sound GREAT! Especially considering the price ($44) I have a few pair of earbuds in this same and higher price range and these PK3's knock all of them out of the water. They have a flat sounding...” --thebluebulk

“Introduction:
Reid Heath Audio has been pushing out headphones these past year that many are beginning to take notice of. They are still new to the world of headphone audio and don't have too many headphone units out yet, but they do have a passion for audio, making it available world wide, and at affordable prices. Today I have a newcommer (late 2012 to early 2013) to RHA's lineup....” --bowei006

“Many thanks to RHA Audio for providing this free review sample.
The MA600 is tuned as a V shape. For those who don't know what that means, a V shaped tuning means the treble and bass have been tuned to sound more forward and aggressive then the mids. End result, the mids tend to sound more laid back in comparison to the rest of the sound signature. Some good examples of gear, both...” --DigitalFreak

“
I'd like to think RHA for sending me these earphones for review.
Along with the summary below, I have posted a Youtube video review of the MA450i. If you like the video, check out my channel for more reviews :)
Summary
BUILD
The MA450i has an interesting build, with a reverse horn / funnel shape. This is actually the...” --a_recording

“
Got these at Amazon after a long search and much reading. Sound for the price is really good. Not in the same league with my Sony Pros or the Sennheisers but surprisingly close. I have them connected with a REALLY cheap headphone amp and the combo far exceeds what I expected. Clear, roomy, dead quiet.
” --Richard S

“
These were my sweetest sounding head-gear yet. It would be brilliant all-rounder if it would not require a portable amp for portable use. This is the first reason i left it, otherwise i almost got an ear infection from those foams.., they get dirty in a few weeks of massive use. I recommend them to clean, i boiled them in water.
” --angevoi

“
Well firstly this is not a true iem. The sound is about as great as one could get from an earbud. In my limited experience and without trying the pk1, I would say these are the finest buds you can buy. With that said, these are not for everyone, this is a niche product within an already niche market. I find driving it with my D12 anaconda makes for a pleasurable sound,...” --Jamesdeandoa